Home / 140,552.59-193,964.10-76,889.02

Finding the Fourth Proportional to 140,552.59, 193,964.10 and 76,889.02

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Solution

The fourth proportional to 140,552.59, 193,964.10 and 76,889.02 is: 106,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,552.59 : 193,964.10 = 76,889.02 : x
  2. Step 2: Convert to fraction form
    140,552.59/193,964.10 = 76,889.02/x
  3. Step 3: Cross multiply
    140,552.59x = 193,964.10 × 76,889.02
  4. Step 4: Simplify right side
    140,552.59x = 14,913,709,079.27
  5. Step 5: Solve for x
    x = 14,913,709,079.27/140,552.59
  6. Step 6: Final answer
    x = 106,107.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.